   
    snum  ,   sname   ,  city        ,   comm 

    1001  ,  Peel     ,  London      ,    .12 
    1002  ,  Serres   ,  San Jose    ,    .13 
    1004  ,  Motika   ,  London      ,    .11 
    1007  ,  Rifkin   ,  Barcelona   ,    .15 
    1003  ,  Axelrod  ,  New York    ,    .10 